Abstract

We studied excitation of surface plasmon-polaritons on graphene-metal surface. The metal surface is functionalized by transfer printing of graphene grown by chemical vapor deposition on copper foils. Surface plasmon resonance characteristics of monolayer and multilayergraphene on the metal surface are presented. We were able to obtain the dispersion relation of graphene-metal surface which reveals the essential feature of the plasmon-polaritons. As an application, we fabricated a surface plasmon resonance sensor integrated with a microfluidic device to study nonspecific physical interaction between graphene layer and proteins.

Received 26 March 2012Accepted 06 May 2012Published online 23 May 2012

Acknowledgments:

This work is supported by the Scientific and Technological Research Council of Turkey (TUBİTAK) Grant Nos: 110T304 and 109T259, Marie Curie International Reintegration Grant (IRG) Grant No. 256458 and Turkish Academy of Science (TUBA).